Punching, Embossing, Engraving or Printing System

Abstract

A punching, embossing, engraving or printing system wherein a continuous strip of material ( 17 ), which extends along a certain run, interacts with a rotating element equipped with a punching, embossing, engraving or printing ring ( 12, 112, 212 ), having one or more metal punching sheets or cliches ( 15, 115; 16, 116 ), and a pair of contrast cylinders ( 13, 113; 14, 114 ) collaborating therewith ( 12, 112, 212 ), envisaging a phasing group ( 18, 118 ), which can be raised or lowered, wherein the continuous strip ( 17 ) always advances at a constant rate and the rotating element equipped with a punching, embossing, engraving or printing ring ( 12, 112, 212 ), rotates at a constant rate in the punching, embossing, engraving or printing phase, whereas it rotates at a varying rate in relation to the dimension of the one or more metal punching sheets or cliches in the absence of the operative punching, embossing, engraving or printing phase. The rotating element equipped with a punching, embossing, engraving or printing ring ( 12, 112, 212 ) can be a cylinder or belt and the operating procedure is repeated for the desired length of the strip ( 17 ) to be printed.

1 . A punching, embossing, engraving or printing method of a continuous strip of material ( 17 ) which extends along a certain run effected by means of a punching, embossing, engraving ( 10 ) or printing ( 110 ) group in a punching, embossing, engraving or printing turret ( 11 ,  111 ), essentially comprising a rotating punching, embossing, engraving or printing ring element ( 12 ,  112 ,  212 ) having one or more punching, embossing, engraving or printing metal sheets or clichés ( 15 ,  115 ;  16 ,  116 ;  215 ,  216 ), and a pair of contrast cylinders ( 13 ,  113 ;  14 ,  114 ) collaborating therewith ( 12 ,  112 ,  212 ), and a phasing group ( 18 ,  118 ), which can be raised or lowered, wherein the continuous strip of material ( 17 ) always advances at a constant rate along the run for the punching, embossing, engraving or printing in succession of formats having a pre-established size, comprising: 
 a first phase for activating a reciprocal interaction cycle between said rotating punching, embossing, engraving or printing ring element ( 12 ,  112 ,  212 ) and said pair of contrast cylinders ( 13 ,  113 ;  14 ,  114 ), for the engagement of one or more punching, embossing, engraving or printing metal sheets or clichés ( 15 ,  115 ;  16 ,  116 ;  215 ,  216 ) with at least one of said pair of contrast cylinders ( 13 ,  113 ;  14 ,  114 ), for punching, embossing, engraving or printing a first printing format on the strip of material ( 17 ) which advances at the same linear rate as the peripheral rate of all said cylinders;    a second advance phase of said strip of material ( 17 ) between said rotating punching, embossing, engraving or printing ring element ( 12 ,  112 ,  212 ) and said pair of contrast cylinders ( 13 ,  113 ;  14 ,  114 ) in an area without said one or more punching, embossing, engraving or printing metal sheets or clichés ( 15 ,  115 ;  16 ,  116 ;  215 ,  216 ) to form an empty section or format or pass over a section or format which has already been punched, embossed, engraved or printed between the rotating ring-closed punching or printing element ( 12 ,  112 ,  212 ) and the first contrast cylinder ( 13 ,  113 ) of said pair of contrast cylinders ( 13 ,  113 ;  14 ,  114 );    wherein in said second advance phase of said strip of material ( 17 ), said rotating punching, embossing, engraving or printing ring element ( 12 ,  112 ,  212 ) rotates at a varying rate which depends on the dimensions of said one or more punching, embossing, engraving or printing metal sheets or clichés ( 15 ,  115 ;  16 ,  116 ;  215 ,  216 );    repeating said phases for the desired length of the strip of material ( 17 ) to be printed.    
     
     
         2 . The punching, embossing, engraving or printing method according to  claim 1 , characterized in that it envisages a cylinder ( 12 ,  112 ) as rotating punching, embossing, engraving or printing ring element.  
     
     
         3 . The punching, embossing, engraving or printing method according to  claim 1 , characterized in that it envisages a belt ( 212 ) as rotating punching, embossing, engraving or printing ring element.  
     
     
         4 . The punching, embossing, engraving or printing method according to  claim 1 , characterized in that it envisages an initial phase in which said phasing group ( 18 ,  118 ) is raised or lowered before the activation of the punching, embossing, engraving or printing operation, so as to establish a quantity of material diverted between said pair of contrast cylinders ( 13 ,  113 ;  14 ,  114 ).  
     
     
         5 . A punching, embossing, engraving or printing machine ( 10 ,  110 ) for performing a punching, embossing, engraving or printing method according to one of the  claims 1  to  4 , said machine ( 10 ,  110 ) essentially comprising a rotating punching, embossing, engraving or printing ring element ( 12 ,  112 ,  212 ), having one or more punching, embossing, engraving or printing metal sheets or clichés ( 15 ,  115 ;  16 ,  116 ;  215 ,  216 ), and a pair of contrast cylinders ( 13 ,  113 ;  14 ,  114 ) collaborating therewith ( 12 ,  112 ,  212 ), and a phasing group ( 18 ,  118 ), which can be raised or lowered before the activation of the punching, embossing, engraving or printing operation, so as to establish a quantity of material ( 17 ) diverted between said pair of contrast cylinders ( 13 ,  113 ;  14 ,  114 ).  
     
     
         6 . The punching, embossing, engraving or printing machine ( 10 ,  110 ) according to  claim 5 , characterized in that said rotating punching, embossing, engraving or printing ring element is a cylinder ( 12 ,  112 ).  
     
     
         7 . The punching, embossing, engraving or printing machine ( 10 ,  110 ) according to  claim 5 , characterized in that said rotating punching, embossing, engraving or printing ring element is a belt ( 212 ).  
     
     
         8 . The punching, embossing, engraving or printing machine ( 10 ,  110 ) according to  claim 5 , characterized in that said phasing group ( 18 ,  118 ) comprises a so-called “dancer” arrangement consisting of a rod ( 22 ), carrying a pair of return rolls ( 23 ) at its ends, on which the strip of material being processed ( 17 ) runs.